Lock for vehicle-doors.



W. H. APPLEBY.

LOCK FOR VEHICLE DOORS.

APPLICATION FILED JAN. 10, 1913.

Patented Oct. 13, 1914,

UNIi' ED SiiillifiiiiiFQ EATENT OFFICE.

WILLIAM ENTRY APF'LEBY, CHIC 1G0, ILLINOIS iiii'mited0ct.13.1914.

Ianmrv "1Q. 3963,

app-sin incline planes whereby fun-0 nuns n t1) :MUizlifi the bolt is Li. in a mini nun. itimi' Ulijiii of this invention is to i from 01H aizunpvrl up pier'e of sheet i ur mum inciosing the lock zliiiiilrs thei'wif {lllil of the rod, i into imuings of ii knob shank mu t ni ziim w inernuf. bf; means of which vs; to i!?-'iilifiYPhHfilQc in 1 i i i imili i'uimvioil by a knob 01 handle 1 ii in, I n ant ivl-o oi the door, and inlle- My its u-t mion from of this im'ention is to kl viii; an g-w'min unstlintcki that pPYntiVC osition against viii. by 11mins of not Mr :is Kiikll. providing 5: mi iinnuini' gi'nuve in the 'aiZSHE/i'vilii the mil against liii i il\t( whim-i hi this invention is to 'l'iU slip Iraq:- 0: 0mm so umisti'uctecl that suriiii-v iui'ms 1 having in! the lock bolt j u 'l A hu pure lav iliui I withmst, flik filziiing the ii'im'enient 0f the 0f the rod 111141 lwnw um ii I in: 111% i; nilam planes rising, as they in View. my invention i iii, in certain features of n0v- .y in mnstrmiion, combination and ilififiillltlit parts by which the said and ((i{aii1 other objects are herein- Vim-(i, :ili as fully described With L0 the :nrminpunying drawing, lllliSi lm ii-mail in upwmii iiiilii) particularly pointed out in the 1 11 I tannins. I V

The prime ohjcu of this iiiYvIitiU-li n l in said iirzijvmg: Flgum 1 IS a plan view have the bolt and (in: mil an Clilwli'lltiili mu! 1 0f the R ck with the cap or casing removed. ari'anmed that the form, fut i' jti lPi'iilg the Fig. :3 is $1 (iuiziil section (in the line Q-2 bolt is directed on :1 iongmniinai iinai cen- Hf F g. 2. Fig; 3 a plain View of the, lock ti'allv thereof. and that the 31rd and zii'fl 1 the (up or ousing in its operative p0sitill'fllifiii which this ifli ifi? is l1; ismiiz ii isit'lnsing the hearings for the rod, the 3111101; pyoducg a ljjfyxfiflffl i iggy il \ipl'iUS ilig ili'iiiln? lfig thQIQfUX', and other part; vi the iuz-k mcchanism. Fig. 4 is a section on the lin 4--*i of Fig. 3 looking in the bolt. and whereby tin: xnovmn :nt of t 7 bolt by the roll shali be peifemi free in a i the (intention of the arrows, and Fig. 5 is a.

se-ction on the iine 5----3 of Fig. 1.

direct line in its bearings and with the. en tire absence of any lateral pressine tending J Simiim iri'iaractei-s of referenuindicate Tim semis pin 5 in the i-kflYil'iLi figures of the to Wedge, the bolt in its beariiws.

drawing.

A still further nhiect of this invsniion is to hams-i; ghe 1nd and the kick imit by 1 1 i l i I i i i l l i i 5 indicates the base plate for the latch mechanism, and which also one side of the casing of the latch, the other side of' with a slot through which the latch bolt 7 is pro ected, the end of which bolt curved as usual at 8 to facilitate its engagement with the keeper, not shown.

The shank of the latch bolt, which as shown, is ipreferably integral with the latter, I

consists 0 plate 9, is provided with a slot 10 and with a lug ll projecting therein, substantially in line with the longitudinal center of the latch bolt and projecting both above and below the shank 9.015 which it is preferably an integral art. The inner, or operative face 12 of W llCh lug is inclined as shown in Fig From the shank like plate 9 projects a curved arm 13 preferably cast therewith, adapted to be engaged by the lug 14 of the hub 15, provided with a rectangular opcning 16, adapted to receive the shank of a knob or handle on the outside of the door, for the retraction. of the lock bolt by a per son standing outside the vehicle, the lock bolt being automatically moved to and maintained in its pro'ected operative position by means of a coi ed as )ring 17, or other form of common y used for that purpose having a cc end bearing against some fixed portion the lock bolt.

For convenience of the occupant of the carriage the lock bolt is retracted by means of a rotatable vertical rod 18 having a handle 19 bent to form, which rod is provided with an angle bend 20 having a fiat face 21 opposing the inclined face 12 of the lug, and whereby the contacting surface between the in and the crank arm form opposin peralle incline planes.

Inc osing the shank of the latch bolt is a cap or casing 2:12., which, as shown, is preferably stamped to form from a single piece of metal, the opp-cam sides 23 of which are respectively provided at their edges with slots 24 m forming bearings for the rod 18, and for which. purpose the adjacent end of the rod provided with an annular groove into which the adjacent flange 23 projects so that when the cap 22- is in its operatlve position, bea'rin surfaces are not only provided at each si e of the shank plate 9 for the rod, but the rod is held against endwisr movement wl= .n in operation.

The (MP 22 is provided with a dome 27 struck therefrom, to; the rejecting of the incline lug l1, outwardly eyond the shank late, to all'ord a bearing of suilicient length or such a stroke of the crank arm of the rod as will permit a full and necessary ($5 length of stroke of the bolt in both directo say at each side 0 through slots in the base plate, one of whic t-ions. The cap or cover'is also provided with a lug 2S fitting a slot 29 in the base plate 5, and with opposing lugs 30, that is the cap, and projecting is stepped, the edge of the metal step 31 being inclined inwardly and adapted to fit a ainst a corresponding inclinh 32 in the p ate 5 so that by tilting the forward end of the plate to introduce the lug 28 in the slot 29, the incline step 81 will move to engagement ,with the op osing edge of the ase )late 5, and thereby prevent the cap from eing removed without first lifting its rear end, and a result of which a single screw passed through a flange 34 on the cap, and the face plate 6 is sufiicient to prevent the accidental detachment of the cap, which serves to substantially exclude dust from the locking mechanism.

The end of the arm 13 of the latch bolt adapted to engage the follow 14 for the knob shank is rovided with a flange (see Fig. 2), over apping the follow, and thereby maintaining the iollow and the bearing for the knob shank against rocking. or being tiltd out of their operative position.

A; a means for locking the bolt 7 when the door is locked and the bolt is in its keeper, the shank plate of the bolt is provided with a notch 36 adapted to be engaged by a detent 37, manipulated by a. knob 38 indicated by dotted lines in Fig. 1.

In 0 eration, when the door is closed and secure by the projection of the lock bolt into its keeper (not shown) it may be opened by the occupant by taking hold of the ham die 19 and turning it for about a quarter turn, and on the occurrence of which the crank arm will engage the inclined face of the lug and moving upwardly along said face retract the bolt. crank arm the bolt will assume its normally projected position automatically by the operation of the spring 17 By oroviding the crank arm of the rod with the inclined bearing surfacefll arallel to the inclined face of the lug 1 the crank arm has an upwardly sliding movement against the face of the lock as distinguished from a turning and grinding movement it would otherwise have, and the movement which directs the force applied to these opposing surfaces on a line in a lane with the movement of the bolt, which orce bein also centralized with reference to-the longitudinal center of the bolt is necessar'ly less On releasing the.

than that required for moving the be t, and

lated from a. lateral pressure tending to make it bind in its bearings, and in any event requiring a greater force to move it on manipulating it with the rod, and in this connection it is proper to observe that by the transmisison of the operating force through opposing inclined surfaces the frictional wear of the parts at this point is materially reduced, as will .be appreciated when bearing in mind that when, as in previous constructions, the curved surface of the rod cam bearing against the vertical surface of a'lug projecting laterally of the lock bolt, there is an objectionable frictional wearing away of both of these distinctive forms of opposing surfaces.

Among the advantages of my invention is that look mechanism as a whole is much cheaper in construction, more convenient of access for repairs and cleansing, its locking mechanism more fully isolated from dust and other foreign substances, and that by the direction of the force for retracting the lock bolt through the longitudinal center of the lock bolt, and transmitting it thereto by parallel opposing incline planes, at all times there is a free and direct movement of the lock bolt with the expenditure of a minimum degree of force.

Having described my invention, what I claim and desire to secure by Letters Patent is:

1. A lock for vehicle doors comprising in combination a lock bolt, an oscillating rod projeg ing at a right angle to the path of moaeinent of the lock bolt, a crank arm in said rod, an opposing lug on the lock bolt, the conta'ctingsurfacrs between said lug and crank arm being in the form of opposing inclined planes.

2. A lock, for vehicle doors comprising in combination a lock bolt, an oscillating rod projecting laterally at a right angle to the length of said bolt, inclined surfaces on said rod, and lock bolt in opposition to each other, whereby a force tor retractin the lock bolt is directed away from the ro in a line through the longitudinal axis of the lock bolt.

3. A lock for vehicle doors comprising in combination a lock bolt, a lug thereon provided with an inclined surface, a rod extending at a right angle to the path of movement of and adapted to engage said lug and actuate the lock bolt, a sing e piece dust cap, and means connecting said cap with the rod, whereby the rod is sustained against longitudinal movement, substan tially described.

4. A lock for vehicle doors comprising in combination a lock bolt, a rod projecting at right angles thereto, means connecting said rod and lock bolt, whereby on turning the rod the lock bolt is retracted, and a single piece dust cap inclosing said lock bolt, and the opposing surface of the rod provided with bearings for the rod, one of which locks the rod anainst longitudinal movement when the cap is in its operative position, substantially as described.

5. A lock for vehicle doors comp-rising in combination a lock bolt, a base support therefor, a spring automatically projecting said lock bolt, said lock bolt being provide with a shank plate having therein a slot, a lug projecting into said slot an inclined face, a rod extending at a right angle to the path of movement of the bolt, having a crank arm bent therein, provided with a flat inclined face parallel to and opposing said lug, the inner end of said rod provided with,

eing provided with an annular groove and I a detachable single piece cover projectin into said groove and maintaining said r against longitudinal movement, substantially as described.

In witness whereof, I have hereunto set in hand and aflixed my seal, this 7th day of January A. D. 1913.

WILLIAM HENRY APPLEBY. [1,. 8.

\Vitnesses J NO. G. ELLIOTT, MILDRED EnsNER. 

